# SinnSyn vs Arena Training Center

The clearest difference is in-app purchases: Arena Training Center at none against SinnSyn's 2. Arena Training Center also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 11 months). On price and device support there is nothing between them.

Both are free to download. SinnSyn sells 2 in-app purchases, starting at $9.99 per month. Arena Training Center asks for nothing beyond the download.

SinnSyn ships an update every 11 months, Arena Training Center every 2 weeks. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SinnSyn | Arena Training Center |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Size | 108 MB | 83 MB |
| Requires iOS | 15.0 | **13.4.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Sondre Risholm Liverd](https://appshunter.io/developer/1637069234) | [Arena Treningssenter AS](https://appshunter.io/developer/1729754126) |

## What reviewers say

### SinnSyn

[App page](https://appshunter.io/ios/app/sinnsyn/id1637069232)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Månedsabonnement | $9.99 | per month |
| Årsabonnement | $99.99 | per year |


### Arena Training Center

[App page](https://appshunter.io/ios/app/arena-training-center/id6477570132)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SinnSyn free?

SinnSyn is free to download, with in-app purchases available.

### Is Arena Training Center free?

Arena Training Center is free to download, with no in-app purchases.

### Do SinnSyn or Arena Training Center have ads?

SinnSyn shows ads; Arena Training Center does not.

### Which is updated more often, SinnSyn or Arena Training Center?

SinnSyn ships an update every 11 months, and Arena Training Center every 2 weeks. Most recently, SinnSyn was updated on October 17, 2026 and Arena Training Center on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*